Rustic serving tray



FIG. 1 is a perspective view of a rustic serving tray embodying the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image;

FIG. 4 is a front view thereof, the rear view being a mirror image; and,

FIG. 5 is a bottom view thereof.

The area within the broken lines in the drawings illustrate portions of the rustic serving tray that form no part of the claimed design. 

CLAIM The ornamental design for a rustic serving tray, as shown and described. 